发明名称 |
Rigid polyurethane foams with low thermal conductivity and a process for their production |
摘要 |
Rigid closed-cell polyurethane foams with low k-factors are produced by reacting an organic polyisocyanate with an amine-based polyether polyol and a polyester polyol in the presence of a catalyst and a hydrofluorocarbon blowing agent, preferably, HFC-245fa. It is preferred that no water be added to the reaction mixture.
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申请公布号 |
US2008058436(A1) |
申请公布日期 |
2008.03.06 |
申请号 |
US20060513767 |
申请日期 |
2006.08.31 |
申请人 |
BAYER MATERIALSCIENCE LLC |
发明人 |
MAUTINO V. MICHAEL;SCHILLING STEVEN L.;BALL EDWARD E. |
分类号 |
C08G18/48 |
主分类号 |
C08G18/48 |
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